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44results about How to "Enabling Quantitative Research" patented technology

Sulfur hexafluoride gaseous discharge micro component infrared detection device and method

InactiveCN101644670AEffective Discharge DecompositionAccurate component qualitative analysisColor/spectral properties measurementsSulfur hexafluorideDecomposition
A sulfur hexafluoride gaseous discharge micro component infrared detection device and method relates to a sulfur hexafluoride gaseous infrared absorption spectrum analysis device and method. The device of the invention mainly comprises an induction voltage regulator, a corona free experimental transformer, a non local discharge protective resistor, a standard capacitance voltage divider, a GIS analogue element, a non inductive resistance, a Fourier transform infrared spectrometer and a wideband high speed super capacity digital storage oscilloscope; wherein the gas tank in the Fourier transform infrared spectrometer is a long optical distance one. The method of the invention includes that discharge micro component detection is carried out on SF6 gas sample in GIS by utilizing the device ofthe invention. The invention can accurately detect various products produced by gas discharge decomposition of SF6 and has the characteristics of high detection precision, high spectrum resolution, good absorption peak symmetry, high signal to noise ratio and the like. The invention can be widely applicable to GIS equipment online running local discharge and provides reliable data for GIS equipment online running state analysis.
Owner:CHONGQING UNIV

Water body total dissolved gas supersaturation generation and device for studying influence thereof on fish

The invention relates to a controllable temperature water body total dissolved gas supersaturation generation and an experimental device for studying the influence thereof on fish. The device comprises an autoclave, an air inlet, an adjusting air valve, a safe air valve, an air gauge, a water inlet, a water outlet, a water pool provided with a temperature controller, a water pump, a first ball valve, a first flowmeter and a water inlet, wherein, the autoclave, the air inlet, the adjusting air valve, the safe air valve, the air gauge, the water inlet and the water outlet are arranged on the autoclave, and the water pump, the first ball valve, the first flowmeter and the water inlet are sequentially connected with the water pool; an air compressor is connected with the air inlet; the water outlet is sequentially connected with a second ball valve, a second flowmeter and a water channel; a total dissolved gas tester and a water quality monitor are arranged outside the water channel; and the water channel is communicated with the water pool via a latex tube. The invention generates water body featuring total dissolved gas supersaturation by autoclave sealing pressurization, and the whole device adopts circulating water and controls water temperature thereof to be constant. The invention can realize the control on measurement of major physical parameters, such as water temperature,water body pressure, airation content, flow and the like, which affects total dissolved gas supersaturation generation so as to quantificationally analyze the generation principle of total dissolved gas supersaturation and study the influence thereof on fish.
Owner:SICHUAN UNIV

Ice water heat exchange coefficient experimental apparatus and measurement method

The invention provides an ice water heat exchange coefficient experimental apparatus which comprises a water tank 1, a water pump 3, a gate valve 4, a thermoregulator 5, a current meter 6, an ice thickness change measuring instrument 7 and a temperature recorder 8, wherein the water pump 3, the gate valve 4 and the thermoregulator 5 are sequentially connected through a pipeline 2 and form a loop; measurement probes of the current meter 6 and the temperature recorder 8 are positioned in the water tank 1; a measurement probe of the ice thickness change measuring instrument 7 is positioned in an ice layer 19 and water in the water tank. The invention also provides a method for measuring an ice water heat exchange coefficient by utilizing the device. The device well simulates reservoir icing and low-flow speed water flow conditions, acquires an ice water heat exchange coefficient of a corresponding reservoir and provides a design basis for water conservancy projects, also avoids the difficulty of developing reservoir ice water heat exchange coefficient prototype measurement in a rushing frigid zone reservoir area and provides great convenience and implementation possibility for research.
Owner:SICHUAN UNIV

Infrared detection device and method for C4F7N concentration and discharging micro components

PendingCN109060705ARich varietyAccurate component qualitative analysisMaterial analysis by optical meansCarbon dioxide gas cylinder EGas cylinder
The invention discloses an infrared detection device and method for C4F7N concentration and discharging micro components. The infrared detection device for the C4F7N concentration and the dischargingmicro components comprises a fourier transform infrared spectrometer and a waste gas bottle, the waste gas bottle is connected with a vacuum pump, the vacuum pump is connected with a second switch valve, the fourier transform infrared spectrometer is connected to the end, away from the vacuum pump, of the second switch valve, and the other end of the fourier transform infrared spectrometer is connected with a PC machine. A pressure sensor is connected to the end, close to the second switch valve, of the fourier transform infrared spectrometer, the pressure sensor is connected with a first switch valve, and a gas-collecting bag is connected to the end, away from the pressure sensor, of the first switch valve. A gas distribution meter is connected to the end, away from the first switch valve, of the gas-collecting bag, the gas distribution meter is separately connected with a C4F7N gas bottle, and a carbon dioxide gas bottle and a component gas bottle, the fourier transform infrared spectrometer comprises a long optical path gas pool capable of effectively detecting the concentration and the components, and qualitative analysis can be carried out on the C4F7N discharging micro components accurately.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Rock burst/rock explosion analog simulation energy storage-time tank device

A rock burst / rock explosion analog simulation energy storage-time tank device belongs to the technical field of geotechnical engineering. By adopting the device, the study on the mechanism of rock burst / rock explosion can have breakthrough, the characteristics of energy and time factors which cause the rock burst are considered, and an elastic energy accumulating process can be recorded, and the time required by elastic energy releasing can be recorded. The lower ends of four long rigid rods and four short rigid rods of an extensometer are respectively connected with a strain gage, the lower ends of the four long rigid rods and the lower ends of the four short rigid rods of the extensometer are respectively fixed into an extensometer placement tank of a lower rigid pressing plate, the upper ends of the four long rigid rods of the extensometer are in contact with a 45-degree chuck arranged at the lower end of the upper rigid pressing plate; screw holes of the side wall of the four short rigid rods of the extensometer are in threaded connection with screws; an upper energy storage-time tank and a lower energy storage-time tank are respectively connected with an upper pressure sensor and a lower pressure sensor, and the upper pressure sensor and the lower pressure sensor are respectively connected with piston rods of an upper load cylinder and a lower load cylinder. The device is used for rock burst / rock explosion analog simulation experiments.
Owner:HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

City function space compactness measurement method combining electronic map interest points

ActiveCN111047217AEnabling Quantitative ResearchComprehensively reflect the characteristics of compactnessGeographical information databasesResourcesAlgorithmElectronic map
The invention relates to a city function space compactness measuring method combining electronic map interest points. According to the method, a grid system is combined with different types of electronic map interest points to extract type grid layers; the relation index between different types of layers is calculated, the relation weight is solved according to the judgment of the relation type weight of different types of layers, and finally weighting is performed to obtain the urban function space compactness index, thereby realizing the quantitative research of the urban space compactness,and more comprehensively reflecting the compactness characteristic of the urban space form. By combining the urban function space compactness measurement of the electronic map interest points, the correlation between the urban compactness index and the urban travel time is improved, and the actual characteristics of the urban function space can be reflected more scientifically and accurately.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

Quantitative simulation system and method for alkane oxidation process in deep sea sedimentary environment

The invention discloses a deep sea sedimentary environment alkane oxidation process quantitative simulation system and method, and relates to the technical field of marine natural gas hydrate resource development and environmental ecological engineering. The system comprises a deep sea environment high pressure simulation cavity, an environment temperature simulation module, an environment pressure simulation module, an experiment module and a data acquisition control module; through cooperation of all the modules, the temperature and pressure in the environment high-pressure simulation cavity are the same as those of a deep sea environment sampling point in the whole experiment process, and full-process fidelity of a deep sea sediment sample is achieved; quantitative alkane-containing fluid is injected into the deep-sea environment high-pressure simulation cavity for reaction, so that quantitative research on the deep-sea sedimentary environment alkane oxidation reaction process is realized; directional experimental fluid is injected into the deep-sea environment high-pressure simulation cavity for reaction, and directional change of the deep-sea sedimentary environment alkane oxidation reaction process is achieved.
Owner:GUANGDONG UNIV OF TECH

Pendular component vibration demonstration instrument

Provided is a pendular component vibration demonstration instrument. A compound pendulum mechanism is of a structure hinged to a spindle and is provided with a friction plate; a friction mechanism comprises a friction wheel, the structure that the compound pendulum mechanism is driven by the rotating friction wheel to swing through friction force generated by the friction wheel and a neighboring friction plate is formed the compound pendulum mechanism is provided with a pressure adjustment mechanism, the moving end of the pressure adjustment mechanism is connected with the friction plate and used for adjusting pressure of the friction plate on the friction wheel, the compound pendulum mechanism is connected with a tilt angle frequency sensor, and the tilt angle frequency sensor is used for detecting tilt angles or the frequency of the compound pendulum mechanism. The pendular component vibration demonstration instrument has the advantage that for a self-induced vibration demonstration and research model, the quantitative research of a self-induced vibration mechanism is achieved by changing rotating speed, the coefficient of friction (change friction plates of different materials and add lubricant oil), and the intrinsic frequency pendulum mechanism is changed.
Owner:南京乐汉东智能设备有限公司 +1

Balance force type electromagnetic relay clamping device with adjustable parameters

The invention relates to a clamping device, in particular to a balance force type electromagnetic relay clamping device with adjustable parameters. The invention provides the clamping device with adjustable parameters for a balance force type electromagnetic relay. The clamping device comprises an electromagnetic component locating device, a short yoke adjusting device, an armature adjusting device and a bottom plate adjusting device which are respectively and fixedly arranged on the upper end surface of a base, wherein the short yoke adjusting device is used for supporting, fixing and adjusting a short yoke clamping device to be arranged at the position within the two-dimensional plane; the short yoke clamping device and the electromagnetic component locating device are used for clamping and fixing an electromagnetic component of the electromagnetic relay to be tested in a matching way; the armature adjusting device is used for supporting, fixing and adjusting an armature clamping device to be arranged at the position within the two-dimensional plane; the armature clamping device is used for clamping and fixing an armature of the electromagnetic relay to be tested; the bottom plate adjusting device is used for supporting, fixing and adjusting a bottom plate clamping device to be arranged at the position within the two-dimensional plane; and the bottom plate clamping device is used for clamping and fixing a bottom plate of the electromagnetic relay to be tested. The balance force type electromagnetic relay clamping device with adjustable parameters is suitable for testing the performances and the service life of the relay.
Owner:HARBIN INST OF TECH

Litter layer transmittance measuring device and measuring method

The invention provides a litter layer transmittance measuring device and measuring method, relating to the microwave radiation characteristic measuring field, and fills the blank of litter layer transmittance measurement. The measuring device comprises an accumulator, a microwave radiometer, a sample room, a lifting platform and a data terminal. The horn antenna of the microwave radiometer is placed directly under the sample room, and the port of the horn antenna is vertically upward. The microwave radiometer measures a sample in the sample room to obtain the microwave radiation brightness temperature of the sample, and thereby calculates the transmittance of the sample; the data terminal and the microwave radiometer perform data communication to record the measuring data of the microwave radiometer in real time. The litter layer transmittance measuring device and measuring method have the characteristics of simple operation and easy calculation, are suitable for multifrequency, meanwhile can realize measurement high precision and high efficiency, and can effectively measure the transmittance of litter layers with different thickness and water contents.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Experimental apparatus of oversaturation total dissolved gas in dam water discharging downstream water

The invention relates to an experimental device for supersaturated total dissolved gas of the downstream water body of discharging water of a dam. The device comprises a water column, valves, a flowmeter, an air compressor, a manometer, a total dissolved gas tester and a stirrer. A first valve and the flowmeter are respectively connected with the bottom of the water column by a pipeline, the outlet of the air compressor is communicated with the flowmeter by a second valve through one end of a three-way pipe, and is communicated with the atmosphere by a third valve through the other end of thethree-way pipe; the scale position on the wall of the water column is connected with a latex pipe which is connected with the manometer; the total dissolved gas tester and the stirrer are independent, and the total dissolved gas tester is placed into the water column when measuring. The device of the invention can measure and control main physical parameters which influence the generation and release of supersaturated total dissolved gas such as water body pressure, aerification quantity, water depth and turbulent strength, so as to carry out quantitative analysis to the total dissolved gas, and therefore the device of the invention has important promoting effects for the protection of river aquatic ecological environment and the establishment of ecology friendly hydraulic engineering.
Owner:SICHUAN UNIV

Water body total dissolved gas supersaturation generation and device for studying influence thereof on fish

The invention relates to a controllable temperature water body total dissolved gas supersaturation generation and an experimental device for studying the influence thereof on fish. The device comprises an autoclave, an air inlet, an adjusting air valve, a safe air valve, an air gauge, a water inlet, a water outlet, a water pool provided with a temperature controller, a water pump, a first ball valve, a first flowmeter and a water inlet, wherein, the autoclave, the air inlet, the adjusting air valve, the safe air valve, the air gauge, the water inlet and the water outlet are arranged on the autoclave, and the water pump, the first ball valve, the first flowmeter and the water inlet are sequentially connected with the water pool; an air compressor is connected with the air inlet; the water outlet is sequentially connected with a second ball valve, a second flowmeter and a water channel; a total dissolved gas tester and a water quality monitor are arranged outside the water channel; and the water channel is communicated with the water pool via a latex tube. The invention generates water body featuring total dissolved gas supersaturation by autoclave sealing pressurization, and the whole device adopts circulating water and controls water temperature thereof to be constant. The invention can realize the control on measurement of major physical parameters, such as water temperature,water body pressure, airation content, flow and the like, which affects total dissolved gas supersaturation generation so as to quantificationally analyze the generation principle of total dissolved gas supersaturation and study the influence thereof on fish.
Owner:SICHUAN UNIV

Mouse caudal vertebra oscillator

The invention discloses a mouse caudal vertebra oscillator. The mouse caudal vertebra oscillator comprises a first clamp and a second clamp which are fixed to the mouse caudal vertebra, and further comprises at least one oscillator body which drives the first clamp and / or the second clamp to do reciprocating motion in the mouse caudal vertebra direction. The mouse caudal vertebra oscillator is used for simulating intervertebral disc degeneration and then applying periodic mechanical stimulation of tension and compression in vitro, so that quantitative research of the periodic mechanical stimulation on reversion of the intervertebral disc degeneration is achieved.
Owner:THE FIRST AFFILIATED HOSPITAL OF BENGBU MEDICAL COLLEGE

Test device and method for quantitative research of water inrush from coal seam floor

The invention discloses a test device and method for quantitative research of water inrush from a coal seam floor. The test device comprises a test box and a data acquisition detection system, wherein a cylindrical cavity is formed in the test box, the top of the test box is connected with a pressure machine, a hole is formed in a top plate at the top, a connecting pipe is arranged above the hole, and the other end of the connecting pipe is connected with a liquid collecting bottle; a visual window is arranged at the front end of the test box and connected with the cavity through a bolt; the data acquisition detection system comprises a high-speed camera and a stress-strain gauge, the test process is shot by use of the high-speed camera, a shot picture is used for following research and used as a basis of experimental data, and the stress-strain gauge collects stress change information during loading. The test method is implemented as follows: the visual window is arranged on the test box, scales are marked on the visual window, and the water inrush condition of the coal seam floor is monitored through the high-speed camera. The purpose of quantitative description of an experiment achieved, and the high requirements for research on water inrush from the coal seam floor at the current stage are met.
Owner:TAIYUAN UNIV OF TECH

Simulation Method for Transient Process of Variable Mass Dynamic Vibration Absorber

The invention provides a variable-mass power vibration absorber transient process simulation method. The method is characterized by comprising the following steps of obtaining an initial parameter at a moment t when the mass is varied according to a variable-mass power vibration absorber, calculating an initial acceleration vector of the moment t, giving an integration step delta t, beta and gamma, calculating an integration constant, calculating an equivalent rigidness matrix, calculating a valid load vector at the moment of (t + delta t), calculating a displacement vector at the moment of (t + delta t), calculating an acceleration vector and a speed vector at the moment of (t + delta t), when the mass (m2+mv(t)) of the vibration absorber is suddenly changed to (m2+mv(t+delta t), respectively correcting the displacement vector, the speed vector and the acceleration vector, and finally solving the displacement vector, the speed vector and the acceleration vector at any moment of a system. According to the simulation method, the momentum conservation law is considered in the mass variation process, so that the variable-mass process conforms to the natural rule. The simulation method is reliable in error degree; the following result is obtained through the simulation and experimental contrast: the vibration of the main system is decreased by 7 percent after the mass of the vibration absorber is reduced.
Owner:CHANGAN UNIV

A kind of ice-water heat exchange coefficient experimental device and measuring method

The invention provides an ice water heat exchange coefficient experimental apparatus which comprises a water tank 1, a water pump 3, a gate valve 4, a thermoregulator 5, a current meter 6, an ice thickness change measuring instrument 7 and a temperature recorder 8, wherein the water pump 3, the gate valve 4 and the thermoregulator 5 are sequentially connected through a pipeline 2 and form a loop; measurement probes of the current meter 6 and the temperature recorder 8 are positioned in the water tank 1; a measurement probe of the ice thickness change measuring instrument 7 is positioned in an ice layer 19 and water in the water tank. The invention also provides a method for measuring an ice water heat exchange coefficient by utilizing the device. The device well simulates reservoir icing and low-flow speed water flow conditions, acquires an ice water heat exchange coefficient of a corresponding reservoir and provides a design basis for water conservancy projects, also avoids the difficulty of developing reservoir ice water heat exchange coefficient prototype measurement in a rushing frigid zone reservoir area and provides great convenience and implementation possibility for research.
Owner:SICHUAN UNIV

Experimental device for generating over-saturated general dissolved gas by high-speed jetting air doping

InactiveCN101806793BLess frequent drainageShorten the timeTesting waterAquatic ecosystemJet flow
The invention relates to an experimental device for generating over-saturated general dissolved gas by high-speed jetting air doping, comprising a water column, a flowmeter, an air compressor, a general dissolved gas tester, a first valve, a second valve, a third valve, a water pump, a water flow nozzle and a gas nozzle, wherein the air compressor is connected with the flowmeter connected with the gas nozzle through the second valve, and the gas nozzle is arranged in the water column; one end of the water pump is connected with the bottom of the water column, the other end of the water pump is connected with the water flow nozzle through the first valve, and the water flow nozzle is arranged in the water column; the third valve is installed at the bottom of the water column; and the general dissolved gas tester is inserted to the water column when testing. The experimental device can realize the control on the measurement of main physical conditions affecting the generation of the over-saturated general dissolved gas, such as the jetting flow speed of a water body, air-doped amount, pressure, water depth and the like, thereby achieving the purpose of quantitatively researching theair-doped jetting flow of the over-saturated general dissolved gas; and the experimental device has the important promoting function on protecting the aquatic ecosystem of rivers and establishing environmental-friendly hydraulic engineering.
Owner:SICHUAN UNIV

Agricultural machine test rack convenient to debug

The invention relates to an agricultural machinery test rack convenient to debug, comprising a fixed plate and a workbench, the fixed plate is provided with a vibration mechanism, the fixed plate is slidably connected with a plurality of buffer assemblies, one end of each buffer assembly is provided with a road surface simulation mechanism, and the other end is connected with a workbench ball head; a cover plate on the pavement simulation mechanism is inclined at different angles by controlling the cover plate angle adjusting assembly, the worktable is inclined at the same angle as the cover plate by the buffer assembly after the cover plate is inclined, and the worktable is enabled to perform simple harmonic motion at different inclination angles by controlling the motion state of the crank connecting rod assembly. Complex road spectrum excitation information under terrains with different inclination angles is continuously adjusted into simple harmonic motion, so that quantitative research on the relation between production and harvesting of agricultural equipment and the road spectrum excitation information under different terrains is realized, and experimental data are more comprehensive.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Variable-mass power vibration absorber transient process simulation method

The invention provides a variable-mass power vibration absorber transient process simulation method. The method is characterized by comprising the following steps of obtaining an initial parameter at a moment t when the mass is varied according to a variable-mass power vibration absorber, calculating an initial acceleration vector of the moment t, giving an integration step delta t, beta and gamma, calculating an integration constant, calculating an equivalent rigidness matrix, calculating a valid load vector at the moment of (t + delta t), calculating a displacement vector at the moment of (t + delta t), calculating an acceleration vector and a speed vector at the moment of (t + delta t), when the mass (m2+mv(t)) of the vibration absorber is suddenly changed to (m2+mv(t+delta t), respectively correcting the displacement vector, the speed vector and the acceleration vector, and finally solving the displacement vector, the speed vector and the acceleration vector at any moment of a system. According to the simulation method, the momentum conservation law is considered in the mass variation process, so that the variable-mass process conforms to the natural rule. The simulation method is reliable in error degree; the following result is obtained through the simulation and experimental contrast: the vibration of the main system is decreased by 7 percent after the mass of the vibration absorber is reduced.
Owner:CHANGAN UNIV

Method and device for obtaining standard scraping therapy skill

The invention relates to a method for obtaining a standard scraping therapy skill, and belongs to the field of traditional Chinese medicine informatization. The method for obtaining the standard scraping therapy skill comprises the steps of collecting pressure data of fingers to scraping therapy plates during the scraping therapy conducted by several scraping therapy experts, adopting a consistent information fusion algorithm to obtain a fusion value of pressure of each scraping therapy expert scraping therapy skill, and adopting a genetic algorithm to obtain a change interval of the pressure of the standard scraping therapy skill. According to the method for obtaining the standard scraping therapy skill, a pressure sensor is adopted to precisely measure the pressure exerted by the scraping therapy experts in the scraping therapy process and the pressure distribution, the scraping therapy data of the multiple scraping therapy experts is subjected to statistics, the fusion value of the pressure and the change interval of the pressure of the standard scraping therapy skill are obtained through the consistent information fusion algorithm and the genetic algorithm, objectified, standardized and normalized quantitative research of the scraping therapy is achieved, a systematic guide role can be played in clinic, and technical support is provided for achievement of digitization and automation of the scraping therapy.
Owner:SHANGHAI UNIV OF T C M

Method for measuring overburden porosity with water in permeation fluid mechanics experiment

The invention discloses a method for measuring overburden porosity with water in permeation fluid mechanics experiment. The method comprises the following steps of: adding ambient pressure around the core with known pore volume; injecting the single-phase fluid with known compression coefficients into the core in a saturated manner, and enabling pressure at the two ends of the core to conform to the actual conditions of the stratum; and then, sequentially increasing the ambient pressure, and sequentially measuring the change of pore pressure in the core after the ambient pressure is increased so as to determine the change of pore volume and determine the porosity change under an overburden condition. The measuring method disclosed by the invention is applicable to the overburden pore permeability research in the field of low-permeability and ultralow-permeability storage layer stress sensitive research; and the method can realize overburden pore permeability research on rock while simulating the overburden pressure on a real storage layer, pore pressure and real fluid parameters. The test equipment adopted by the method is simple, and the test principle is clear; and compared with the method for measuring overburden pore permeability with air, the effective porosity measured by the method disclosed by the invention can better reflect the overburden pore permeability characteristics of the real storage layer, and quantitative research on the overburden porosity of the storage layer can be realized.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Carbonate fractured-vuggy reservoir displacement physical model, driving device and manufacturing method

The invention discloses a carbonate rock fracture-cavity reservoir displacement physical model, the core of the model is formed by laser cutting of a transparent organic glass fracture-cavity model design drawing, and four corners of the model are provided with four injection / production outlets; the model core is clamped by a bottom plate, a cover plate and a sealing silicon rubber sheet from two sides, the bottom plate, the cover plate and the sealing silicon rubber sheet are the same in external size, the bottom plate is a transparent organic glass plate, the cover plate is a transparent organic glass plate with four injection / extraction ports at four corners, and the sealing silicon rubber sheet is a transparent organic glass plate with four injection / extraction ports at four corners. The visual model can be used for fracture-vug type reservoir depletion development and water and gas injection displacement experiment research, an effective research approach and means are provided for the fluid flow rule and remaining oil distribution in the fracture-vug type reservoir development process, and the understanding of the recovery efficiency improving mechanism of the fracture-vug type carbonate reservoir is deepened; the main bottle diameter problems of deep analysis of the remaining oil of the oil reservoir and effective implementation of the technology for improving the recovery ratio are solved.
Owner:CHINA UNIV OF MINING & TECH

A bird pecking motion research method based on a body section model

ActiveCN109635779AEnabling Quantitative ResearchSolve the problem of large motion errors in directly capturing feature points on bird feathersCharacter and pattern recognitionEducational modelsBeakDimensional modeling
The invention relates to a bird pecking motion research method based on a body segment model, and the method comprises the steps: employing a camera to shoot a bird single pecking motion video, carrying out the editing and framing of the video, and obtaining a plurality of continuous pecking motion image sequences; Establishing a bird body section model according to the movement link in the bird pecking movement; Extracting bird body outer contours and feature points in the pecking motion image sequence, matching the bird body section model with an area occupied by birds in the image sequenceto obtain shape and size data, establishing a three-dimensional model of the body section model, performing assembly to obtain a three-dimensional model of the whole bird, and performing simulation toobtain a motion track of the beak tip. The method solves the problem that the motion error of feature points on bird feathers directly captured is large, accurate and comprehensive pecking motion data are obtained, pecking motion data are obtained through three-dimensional modeling and simulation, quantitative research on bird pecking motion under the unmarked condition and the non-contact condition is achieved, and a new idea for motion research is provided.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Ultra-high temperature extended deformation measuring device

The invention discloses a uniaxial tension test outward extension type deformation measurement device in an ultrahigh-temperature environment. The device comprises a high-temperature furnace (1), an environmental chamber small box (2), an upper loading pull rod (3), a lower loading pull rod (4), a ring sleeve (5), a clamp (6), an upper clamping ring (8), a lower clamping ring (9), a first connecting pin (11), a stretching rod (12), an upper bracket (13), a lower bracket (14), a bolt (15), a rolling bearing (16), a second connecting pin (17), a guide slot (18), a locking spring (19), a linear variable differential transformer (20), a circumference constraint device (21) and a third connecting pin (22). By the adoption of an outward extension type design, a displacement measurement part is transferred to a normal temperature area outside the high-temperature furnace from an ultrahigh-temperature area in the high-temperature furnace, the quantitative research of the ultrahigh-temperature extension test is realized, and the measurement precision is improved; instrument parts in the ultrahigh-temperature area are made of ultrahigh temperature resistant materials; moreover, the mechanical properties of the ultrahigh-temperature materials are tested and researched, the operation is simple, and the feasibility is high.
Owner:PEKING UNIV

Displacement Physical Model, Driving Device and Manufacturing Method of Carbonate Fracture-vuggy Reservoir

The invention discloses a displacement physical model of a carbonate rock fracture-cavity reservoir. The core of the model is laser-cut from the design drawing of a transparent plexiglass fracture-cavity model, and four injection / production ports are arranged at its four corners; the core of the model is composed of a bottom plate, The cover plate and the sealing silicone rubber sheet are clamped from both sides. The external dimensions of the bottom plate, cover plate, and sealing silicone rubber sheet are the same. The bottom plate is a transparent plexiglass plate, and the cover plate has four injection / production ports at four corners The transparent plexiglass plate, the visualization model of the present invention can be used in the depletion development of fracture-cavity reservoirs and the experimental research of water injection and gas injection displacement, and provides effective research methods and means for the fluid flow law and remaining oil distribution in the development process of fracture-cavity reservoirs , to deepen the understanding of the enhanced oil recovery mechanism of fractured-cavity carbonate reservoirs, and to solve the main bottle diameter problems for in-depth analysis of remaining oil in such reservoirs and effective implementation of enhanced oil recovery technologies.
Owner:CHINA UNIV OF MINING & TECH

Pollutant interception performance testing system for household garbage leachate-based hydrogel

ActiveCN111829914AReal-time measurement of evaporation water release rateEnabling Quantitative ResearchWeighing by removing componentPollutantElectric heating
The invention relates to a pollutant interception performance testing system for household garbage leachate-based hydrogel. The testing system comprises a fan (1), an electric heating generator (3), an evaporator (7), a condenser pipe (16), a collecting bottle (17), a weight sensor (18) and a display terminal (21), wherein the fan (1), the electric heating generator (3), the evaporator (7), the condenser pipe (16) and the collecting bottle (17) are sequentially connected, the collecting bottle (17) is arranged on the weight sensor (18), and the weight sensor (18) is electrically connected withthe display terminal (21). Compared with the prior art, the method has the advantages that the evaporation water release rate of the household garbage leachate-based hydrogel is measured in real time, and quantitative research on the pollutant interception performance of the household garbage leachate-based hydrogel is realized through detection of water quality indexes.
Owner:TONGJI UNIV

A method and system for measuring compactness of urban three-dimensional space

The invention discloses a method and a system for measuring the compactness of urban stereoscopic space. The method comprises the following steps: selecting a stereoscopic compactness measurement index; the urban space is divided into cubic meshes, and the urban three-dimensional spatial mesh with unit mesh is obtained. A city stereo compactness model is constructed according to the stereo compactness measurement index and the city stereo spatial grid. The volumes of the urban buildings in any two unit grids and the centroid distances of the unit grids corresponding to the urban buildings arecalculated respectively. A compactness index of urban stereoscopic space is calculated by using the urban stereoscopic compactness model according to the urban building volume and the centroid distance, and the larger the urban stereoscopic space compactness index is, the more compact the urban stereoscopic space is. The invention can more comprehensively and scientifically study the urban stereoscopic space form and realize the quantitative measurement of the compactness of the urban stereoscopic space form.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

A Quantitative Simulation System and Method for Alkane Oxidation Process in Deep Sea Sedimentary Environment

The invention discloses a system and method for quantitatively simulating the alkane oxidation process in a deep-sea depositional environment, and relates to the technical fields of marine natural gas hydrate resource development and environmental ecological engineering. Pressure simulation module, experiment module, and data acquisition control module; through the cooperation of each module, the temperature and pressure in the high-pressure simulation chamber of the environment are the same as the sampling points of the deep-sea environment during the whole experiment process, so as to realize the fidelity of the whole process of deep-sea sediment samples; through Quantitative alkane-containing fluid is injected into the deep-sea environment high-pressure simulation chamber for reaction to realize the quantitative study of the alkane oxidation reaction process in the deep-sea depositional environment; by injecting directional experimental fluid into the deep-sea environment high-pressure simulation chamber for reaction, the alkane oxidation reaction process in the deep-sea depositional environment is realized. Orientation changes.
Owner:GUANGDONG UNIV OF TECH
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